So I'm unable to get mine to function properly (see picture). The problem is that the piece that is meant to stop and allow the wheel to turn when the top hook piece is engaged (trigger pulled) or un-engaged has no effect.. If i have the hook (controlled by the trigger) completely off it, and applying pressure to the wheel, the same way rubber bands would if loaded, it just doesn't move. The wheel isnt able to slide past it regardless of if the trigger is pulled or not. You may think, "well you dont have any rubberbands connecting it to the trigger!" BUT that wouldnt make any difference since that thing that stops the wheel is all the way up against that stopper pin on the main frame and nothing including rubber bands could pull it closer.. Maybe i need to sand something or adjust something? I have no idea.. Anyone get this working that could lend some assistance?